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o·ver·bur·den AHD[ō'vər-bûrʹdn] D.J.[ˌəʊvəˈbɜːdn]K.K.[ˌovɚˈbɝdņ]v.tr.（及物动词）o.ver.bur.dened, o.ver.bur.den.ing, o.ver.bur.dens - To burden with too much weight; overload.过重，超载：使负担过重；使装载过多
- To subject to an excessive burden or strain; overtax.过重的负担或压力；对…加以过重负担
n.（名词）AHD[ōʹvər-bûr'dn] - An excessive burden; an overload.过重的负担；超载
- Geology 【地质学】
- Material overlying a useful mineral deposit.覆盖层，超覆层：覆盖在有价值的矿石沉积物之上的物质
- Sedimentary rock covering older crystalline layers.沉淀岩：覆在旧的水晶状层之上的沉积岩石
- Archaeology A sterile stratum overlying a stratum bearing traces of the culture being studied.【考古学】 贫瘠的岩层：覆盖在有研究价值的文化层之上的废石土层
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